build(deps): bump csv-string from 3.1.6 to 3.1.7

Bumps [csv-string](https://github.com/touv/node-csv-string) from 3.1.6 to 3.1.7.
- [Release notes](https://github.com/touv/node-csv-string/releases)
- [Commits](https://github.com/touv/node-csv-string/commits/v3.1.7)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -23,7 +23,7 @@
     "async": "3.1.0",
     "boom": "7.3.0",
     "csv-streamify": "4.0.0",
-    "csv-string": "3.1.6",
+    "csv-string": "3.1.7",
     "debug": "4.1.1",
     "dottie": "2.0.2",
     "glob": "7.1.6",